Salts Flashcards
1
Q
Describe the insoluble base method
A
Alkali (solid) spooned in beaker and acid added Stir it Warm it to speed up Add alkali until it no longer dissolves Filter it Remove excess base Keep filtrate and evaporate half of it Evaporate the rest slowly in a warm place
2
Q
Describe titration
A
Known solution- pipette in conical flask
Other solution in burette (+/- 0.2)
Acid added to conical flask until colour change
Take reading
Repeat
Evaporated and crystallised
3
Q
Describe the precipitation method
A
Dissolve both in water Mix/add Filter solution Wash residue Dry on filter paper
